What is gcd2x?
--
Raul
On Mon, Jul 10, 2023 at 12:49 PM 'Mike Day' via Programming
<programm...@jsoftware.com> wrote:
>
> I'm probably missing the blindingly obvious but why does this happen in JIOS
> on my iPad but not in J903, J9.4 & J9.5 under Windows?
>
> JVERSION
> Engine: j903/j64/iOS
> beta-k: GPL3/2023-04-16T23:21:00
> Platform: iOS/iPadOS
> Version: 903.2 57
> Installer: App Store
> Contact: www.jsoftware.com
>
> load'~user/finite.ijs' NB. or any implicit load of finite.ijs
> |syntax error
> | mi=: {{'r0 s0 t0'=:gcd2x m,y...}}"0
> |[-277]
> /private/var/mobile/Containers/Data/Application/219E805B-EDC1-4B43-858D-814C13F48E94/Documents/j/user/finite.ijs
>
> Here's mi:
> NB. adverb giving divide (inverse) mod m
> mi=: {{
> 'r0 s0 t0'=:gcd2x m,y
> if. r0=1 do. m|t0 else. 1r0 end.
> :
> m|x*m mi y
> }}"0
>
> This "syntax error" also occurs when using the alternative method of
> definition,
> mi =: 1 : 0"0
> ...
> )
>
> Thanks,
>
> Mike
>
>
> Sent from my iPad
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